H12-222-ENU 무료 덤프문제 온라인 액세스

Which of the following statements regarding data forwarding on a traditional IP network are true? (Multiple Choice)

• A.Traditional IP forwarding uses hop-by-hop forwarding.
• B.A traditional IP network cannot provide a good QoS guarantee.
• C.All the routers on a traditional IP network need to know routes on the entire network or default routes.
• D.The traditional IP forwarding is connection-oriented and has low efficiency.
• E.On a traditional IP network, optimal paths are calculated based on the IGP metrics.

Which drop policy is not inclued by congestion avoidance? (Multiple Choice)

• A.RED
• B.WRED
• C.WFQ
• D.FIFO

MPLS uses LDP to provide different label distribution modes.
Which of the following statements regarding LDP label distribution control modes are false? (Multiple Choice)

• A.LDP label distribution cannot be controlled in independent mode.
• B.In independent mode, an [SR cannot send label mapping messages to the upstream router before it receives label mapping messages from the next hop LSR.
• C.In ordered mode, when an [SR is the origin of a route, it can send label mapping messages to the upstream router initiatively and does not need to wait for label mapping messages from the next hop LSR.
• D.LDP label distribution can be controlled in ordered mode.

A 32-bit MPLS header consists of a 20-bit label used for packet forwarding; A 3-bit EXP field that identifies the IP packet priority; A 1-bit bottom-of-stack flag that identifies the last label; And an 8-bit TTL field.
Which statement regarding the TTL field is true?

• A.This field limitation the LSR.
• B.This field is used to prevent packet forwarding loops, similar to the TTL field in an IP header.
• C.This field used to control the upstream device in label distribution.
• D.This field is used for label management.

During BFD session establishment between devices, which state is not involved?

• A.down
• B.init
• C.up
• D.2-way